117 lines
3.0 KiB
JavaScript
117 lines
3.0 KiB
JavaScript
'use strict';
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var test = require('tape');
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var isDescriptor = require('../');
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var noop = function () {};
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test('isDescriptor', function (t) {
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t.test('is false when not an object:', function (st) {
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st.notOk(isDescriptor('a'));
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st.notOk(isDescriptor(null));
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st.notOk(isDescriptor([]));
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st.end();
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});
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t.test('returns true if the property exists', function (st) {
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var obj = { foo: null };
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Object.defineProperty(obj, 'bar', {
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value: 'xyz'
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});
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Object.defineProperty(obj, 'baz', {
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get: function () {
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return 'aaa';
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}
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});
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st.ok(isDescriptor(obj, 'foo'));
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st.ok(isDescriptor(obj, 'bar'));
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st.ok(isDescriptor(obj, 'baz'));
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st.end();
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});
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t.test('data descriptor:', function (st) {
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st.test('is false when the object has invalid properties:', function (s2t) {
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s2t.notOk(isDescriptor({ value: 'foo', get: noop }));
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s2t.notOk(isDescriptor({ get: noop, value: noop }));
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s2t.end();
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});
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st.test('is not false when the object has unrecognize properties:', function (s2t) {
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s2t.ok(isDescriptor({ value: 'foo', bar: 'baz' }));
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s2t.ok(isDescriptor({ value: 'foo', bar: 'baz' }));
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s2t.end();
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});
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st.test('is true when the object has valid properties:', function (s2t) {
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s2t.ok(isDescriptor({ value: 'foo' }));
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s2t.ok(isDescriptor({ value: noop }));
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s2t.end();
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});
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st.test('is false when a value is not the correct type:', function (s2t) {
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s2t.notOk(isDescriptor({ value: 'foo', enumerable: 'foo' }));
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s2t.notOk(isDescriptor({ value: 'foo', configurable: 'foo' }));
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s2t.notOk(isDescriptor({ value: 'foo', writable: 'foo' }));
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s2t.end();
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});
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st.end();
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});
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t.test('accessor descriptor:', function (st) {
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st.test('should be false when the object has invalid properties:', function (s2t) {
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s2t.ok(!isDescriptor({ get: noop, writable: true }));
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s2t.ok(!isDescriptor({ get: noop, value: true }));
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s2t.end();
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});
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st.test('is not false when the object has unrecognize properties:', function (s2t) {
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s2t.ok(isDescriptor({ get: noop, set: noop, bar: 'baz' }));
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s2t.end();
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});
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st.test('is false when an accessor is not a function:', function (s2t) {
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s2t.notOk(isDescriptor({ get: noop, set: 'baz' }));
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s2t.notOk(isDescriptor({ get: 'foo', set: noop }));
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s2t.notOk(isDescriptor({ get: 'foo', bar: 'baz' }));
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s2t.notOk(isDescriptor({ get: 'foo', set: 'baz' }));
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s2t.end();
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});
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st.test('is false when "get" or "set" is not a function', function (s2t) {
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s2t.notOk(isDescriptor({ set: 'foo' }));
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s2t.notOk(isDescriptor({ get: 'foo' }));
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s2t.end();
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});
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st.test('is true when the object has valid properties:', function (s2t) {
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s2t.ok(isDescriptor({ get: noop, set: noop }));
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s2t.ok(isDescriptor({ get: noop }));
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s2t.end();
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});
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st.test('is false when a value is not the correct type:', function (s2t) {
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s2t.notOk(isDescriptor({ get: noop, set: noop, enumerable: 'foo' }));
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s2t.notOk(isDescriptor({ set: noop, configurable: 'foo' }));
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s2t.notOk(isDescriptor({ get: noop, configurable: 'foo' }));
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s2t.end();
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});
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st.end();
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});
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});
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